PMID- 16343803 OWN - NLM STAT- MEDLINE DCOM- 20060420 LR - 20220310 IS - 0360-3016 (Print) IS - 0360-3016 (Linking) VI - 64 IP - 4 DP - 2006 Mar 15 TI - Radiotherapy for solitary extramedullary plasmacytoma in the head-and-neck region: A dose greater than 45 Gy to the target volume improves the local control. PG - 1013-7 AB - PURPOSE: Our aim was to determine the dose to the clinical target volume (CTV) required for solitary extramedullary plasmacytoma (EMP) in the head and neck (HN). METHODS AND MATERIALS: Seventeen patients (15 Stage I and 2 Stage II) were treated for HN EMP at our institution between 1979 and 2003. The mean International Commission on Radiation Units (ICRU) dose prescribed to the CTV was 52.6 Gy (range, 40-65 Gy) over 24 fractions (range: 20-30). The Stage II patients received neck irradiation doses of 40 and 60 Gy. A mean dose of 36.4 Gy was used for 5 Stage I patients who received elective neck irradiation. Dose administrated to the CTV was evaluated from dosimetric data or from planning films when dosimetric data were not available. Two groups of patients were distinguished: CTV covered with a dose greater than 40 Gy and CTV covered with a dose greater than 45 Gy. RESULTS: The 5-year local control was 72.8%. It was 100% for patients who received dose to the CTV > or = [DOSAGE ERROR CORRECTED] 45 Gy vs. 50% for dose to the CTV <45 Gy (p = 0.034). The prognostic factor for 5-year disease-specific survival (81.6%) was local control (p = 0.058). The prognostic factors for disease-free survival (64.1%) were monoclonal immunoglobulin secretion (p = 0.008) and a CTV dose > or = 45 Gy (p = 0.056) CONCLUSIONS: Local control of EMP in the HN seems to be improved when the dose to the CTV is > or = [DOSAGE ERROR CORRECTED] 45 Gy. A minimum dose of 45 Gy should be recommended to the CTV. FAU - Tournier-Rangeard, Laetitia AU - Tournier-Rangeard L AD - Department of Radiotherapy, Centre Alexis Vautrin, Nancy, France. l.tournier@nancy.fnclcc.fr FAU - Lapeyre, Michel AU - Lapeyre M FAU - Graff-Caillaud, Pierre AU - Graff-Caillaud P FAU - Mege, Alice AU - Mege A FAU - Dolivet, Gilles AU - Dolivet G FAU - Toussaint, Bruno AU - Toussaint B FAU - Charra-Brunaud, Claire AU - Charra-Brunaud C FAU - Hoffstetter, Sylvette AU - Hoffstetter S FAU - Marchal, Christian AU - Marchal C FAU - Peiffert, Didier AU - Peiffert D LA - eng PT - Journal Article DEP - 20051215 PL - United States TA - Int J Radiat Oncol Biol Phys JT - International journal of radiation oncology, biology, physics JID - 7603616 SB - IM EIN - Int J Radiat Oncol Biol Phys. 2006 May 1;65(1):314. Dosage error in published abstract; MEDLINE/PubMed abstract corrected MH - Adult MH - Aged MH - Aged, 80 and over MH - Disease-Free Survival MH - Female MH - Head and Neck Neoplasms/mortality/pathology/*radiotherapy MH - Humans MH - Male MH - Middle Aged MH - Plasmacytoma/mortality/pathology/*radiotherapy MH - Radiotherapy Dosage EDAT- 2005/12/14 09:00 MHDA- 2006/04/21 09:00 CRDT- 2005/12/14 09:00 PHST- 2005/06/28 00:00 [received] PHST- 2005/08/26 00:00 [revised] PHST- 2005/09/07 00:00 [accepted] PHST- 2005/12/14 09:00 [pubmed] PHST- 2006/04/21 09:00 [medline] PHST- 2005/12/14 09:00 [entrez] AID - S0360-3016(05)02709-4 [pii] AID - 10.1016/j.ijrobp.2005.09.019 [doi] PST - ppublish SO - Int J Radiat Oncol Biol Phys. 2006 Mar 15;64(4):1013-7. doi: 10.1016/j.ijrobp.2005.09.019. Epub 2005 Dec 15.